
package lipengfei.botaiframework.validate;


import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import java.util.Set;

/**
 * hibernate-validator校验工具类
 * <p>
      * 参考文档：http://docs.jboss.org/hibernate/validator/5.4/reference/en-US/html_single/

 */
public class ValidatorUtils {

    private static Validator validator;

    static {
        validator = Validation.buildDefaultValidatorFactory().getValidator();
    }


    public static void validateEntity(Object object, Class<?>... groups)
            throws Exception {
        Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
        if (!constraintViolations.isEmpty()) {
            StringBuilder msg = new StringBuilder();
            for (ConstraintViolation<Object> constraint : constraintViolations) {
                msg.append(constraint.getMessage()).append("<br>");
            }
            throw new Exception(msg.toString());
        }
    }
}
